Table-leaf support



(No Model.)

L .0 e e h 4 s t .e e h 2 114:. HARTB TQABLE LEAF SUPP- NO. 375,594.Patented Jan. 17, 1 888.

"(No-Model.) r 2 SheetsSh eet 2.

F. A. HARTBR. TABLE LEAP SUPPORT.

Patented Jan. 1'7

N. PETERS, Phnlo-Lifhugmphur, Washington. I. C

UNITED STATES PATENT OFFICE.

FREDERICK A. HARTER, OF CHICAGO, ILLINOIS.

TABLE-LEAF SUPPORT.

SPECIFICATION forming part of Letters Patent No. 376,594, dated January17, 1888.

\ Application filed July 152, 185i. Serial No. 244,108. (No model.)

To all whom it may concern:

Be it known that I, FREDERICK A. HARTER, a citizen of the United Statesof America, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inTable-Leaf Sup-' to provide such a supporting-fixture that inthe shapeof a toggle-jointwill fold behind the leaf when pendent, and that withraising such leaf toits horizontal position will lock on itsstraightened-out position to form a rigid brace for sustaining the leaf;and with that object in view my invention consists of the novel devicesand combination of devices hereinafter described and specificailyclaimed.

In the accompanying drawings, Figure 1 represents a sectional elevation,and Fig: 2 a plan,of one end of a table with my attachments, showing indotted lines the parts when folded; and Figs. 3 and 4, similar views ofthe device slightly modified.

Corresponding letters in the several figures of the drawings'designatelike parts.

A denotes the table-top proper, and'a the frame for the same, and B isthe extensionleaf, connected by hinges to the edge of the table, so asto swing thereon from a horizontal to a vertically-pendent position.

0 is a bracket-plate secured against the lower edge of frame a, andforming bearings c for the trunnions d of the lower U-shaped frame, D.This U-shaped frame D consists of two parallel arms, 6, connected by acylindrical bar, f, so as to be U-shaped, and to the upper face of eacharm 0 is formed a reotangularlug, g, and to the bottom face of each arme is formed a shoulder, h.

Against the under face of the table-leaf, near the outer edge thereof,is secured a fixture, I, forming the pivots of two bars, J. These barsare each provided with a longitudinal slot, 73, for bar f of U-shapedframe D to be passed through the same and free to slide therein, andwith grooves in their side faces toward their ends for engaging the endsof bars 6 of U-shaped frame D, and then the lower edge corners of theirends to abut against shoulder h, and the upper edges of their ends beingextended and notched out for engaging lugs g of U-shaped frame D and forproviding exteriorly-extended lugs n.

When the table-leaf is raised to be on a horizontal position, the endsof U-shaped frame D and of bars J are thus pushed into engagement to belocked while on a straight line relative to each other bya spiralspring, K, secured between arms J by being placed with its ends overstuds m, formed on the inner faces of said bars J and pushing these armsapart. For releasing the table-leaf to assume its pendent position thebars J are pressed toward each other, when the grooved and notched-outends of said bars will release and clear the lugs g and'shoulders h ofU-shaped frame D, and the parts will fold upon each other, barf beingfree .to slide longitudinally in slots 1' of bars J for both U-shapedframe Dand bars J, to accommodate themselves for occupyingthe narrowspace between the leaf audtable-frame. The barf of U-shaped frame D hasa central lug, 0, that will limit the contraction of bars J for thepurpose that the ends of lugs 12 will form shoulders against the upperedges of arms 6 of Ushaped frame D, preventing the parts D and J fromfolding downward.

In Figs. 3 and 4 a device is shown as a modification that only varies inthat the cylindri cal connecting bar f of U-shaped frame D forms aregular pivot-joint with eyes in bars J, so as to have nolongitudinally-sliding movement, as in slot of the device heretoforedescribed, and that instead of end lugs, at, side lugs, 19, are formedto the outward edges of bars J for preventing the parts D and J fromfolding downward.

What I claim is- -1. ,The U-shaped frame D, pivotally secured to thetable-frame, and the bars J, pivotally secured to the extension-leaf,said frame D having cylindrical barf and the bars J being ,pivotallyconnected thereto, being pushed apart by spring K, and provided withside grooves for engaging and locking the arms of frame D when on arelative straight-line position therewith, substantially as set forth.

ICO

2. The U-shaped frame D, pivotally secured to the table-frame, and thebars J,pivotal1y pivotally connecting with frame D and for :5 secured tothe cxtcnsion-leafiand pivotally conengaging and locking the arms ofsuch frame nected to barfoffra111eD,said barsJbeing prowhen on arelative straight-line position, and vided with side grooves forengaging and lockwith lugs n, to allow the parts to fold in one 5 ingthe arms of frame D when on a relative direction only, and the spring K,for pushing straight-line position tl1erewit11,and with suitthe bars Japart, all substantially as set forth, 2o able stops or shouldering lugsthat will allow to operate as specified.

the parts to fold in one direction only, sub- In testimony whereofIaffix lnysiguature in stantially as set forth, to operate as specified.presence of two witnesses. IO 3. The U-shaped frame D, pivotallysecuredFREDERICK A HARTER to the table-frame, and having cylindrical bar f, lugg, and shoulder 71, and the bars J, piv- \Vitncsses:

otally secured to the extensionleaf and pro- XVILLIAM H. LoTz, videdwith slots i, and with side grooves for OTTO LUBKERT.

